String literal type for variable causes incorrect hints for TypedDict keys

[tabbea]

Type: Bug

Behaviour

Observed Behaviour

pyright gives the string literal(s) as the key hint(s)

Expected Behaviour

pyright should give the key(s) of the TypedDict as the key hint(s)

Steps to reproduce:

1. Create a TypedDict
2. Attempt to assign a TypedDict element to a variable typed as some string literal(s)
3. Request a hint for the keys of the TypedDict

Screenshots

Diagnostic data

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

XXX

Extension version: 2024.22.1
VS Code version: Code 1.96.2 (fabdb6a30b49f79a7aba0f2ad9df9b399473380f, 2024-12-19T10:22:47.216Z)
OS version: Windows_NT x64 10.0.22631
Modes:
Remote OS version: Linux x64 5.15.167.4-microsoft-standard-WSL2
Remote OS version: Linux x64 5.15.167.4-microsoft-standard-WSL2

• Python version (& distribution if applicable, e.g. Anaconda): 3.12.3
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Venv
• Value of the python.languageServer setting: Pylance

User Settings

languageServer: "Pylance"

testing
• pytestArgs: "<placeholder>"
• pytestEnabled: true
• autoTestDiscoverOnSaveEnabled: false

Installed Extensions

Extension Name	Extension Id	Version
Bash IDE	mads-hartmann.bash-ide-vscode	1.43.0
Black Formatter	ms-python.black-formatter	2024.4.0
Compare Folders	moshfeu.compare-folders	0.25.1
Flake8	ms-python.flake8	2023.10.0
GitHub Pull Requests	GitHub.vscode-pull-request-github	0.102.0
GitLens — Git supercharged	eamodio.gitlens	16.1.1
Haskell	haskell.haskell	2.4.4
Haskell Syntax Highlighting	justusadam.language-haskell	3.6.0
isort	ms-python.isort	2023.10.1
JavaScript Debugger	ms-vscode.js-debug	1.96.0
LaTeX Workshop	James-Yu.latex-workshop	10.7.1
Live Preview	ms-vscode.live-server	0.4.15
LTeX – LanguageTool grammar/spell checking	valentjn.vscode-ltex	13.1.0
macros	geddski.macros	1.2.1
Markdown Preview Enhanced	shd101wyy.markdown-preview-enhanced	0.8.15
Markmap	gera2ld.markmap-vscode	0.2.2
Outline Map	Gerrnperl.outline-map	1.4.1
Overtype	DrMerfy.overtype	0.5.0
Partial Diff	ryu1kn.partial-diff	1.4.3
Pylance	ms-python.vscode-pylance	2024.12.1
Python	ms-python.python	2024.22.1
Python Debugger	ms-python.debugpy	2024.14.0
Rainbow CSV	mechatroner.rainbow-csv	3.13.0
Table Visualizer for JavaScript Profiles	ms-vscode.vscode-js-profile-table	1.0.10
Todo Tree	Gruntfuggly.todo-tree	0.0.226
Toggle	rebornix.toggle	0.0.2
Word Count	ms-vscode.wordcount	0.1.0

System Info

Item	Value
CPUs	AMD Ryzen 9 7900X 12-Core Processor (24 x 4691)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	31.14GB (17.03GB free)
Process Argv	--folder-uri vscode-remote://wsl%2Bubuntu/mnt/c/Users/win11pro/Documents/bea-drive/repos/thesis --crash-reporter-id b869d960-5c79-4cf8-aa6d-f72162f54a9f
Screen Reader	no
VM	0%

Item	Value
Remote	WSL: Ubuntu
OS	Linux x64 5.15.167.4-microsoft-standard-WSL2
CPUs	AMD Ryzen 9 7900X 12-Core Processor (24 x 0)
Memory (System)	15.19GB (11.94GB free)
VM	0%

Item	Value
Remote	WSL: Ubuntu
OS	Linux x64 5.15.167.4-microsoft-standard-WSL2
CPUs	AMD Ryzen 9 7900X 12-Core Processor (24 x 0)
Memory (System)	15.19GB (11.94GB free)
VM	0%

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